Clutch.



I. T. MARTIN & W. L. JONES. CLUTCH. APPLICATION FILED APR.5, 19 10.RENEWED JAN..12.1911.

'985,046, Patented Feb. 21, 1911.

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1J0 if CLUTCH.

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v APPELIUATION FILED APR. 5, 1910. RENEWED JAN. 12, 1911. 985,046.

' transmitted at the The invention has under. no loa struction thereofUNITED srarns PATENT OFF/ICE.

IRA T. MARTIN AND WILLIAM L. JONES, 0F OAKLAND, CALIFORNIA.

CLUTCH.

TooZZ 'uihom it may concern:

Be it known that we, IRA T. MARTIN and lVILLIAM L. JONES, citizens ofthe United States, residing at Oakland, in the county of California,have of Alameda and State v invented certain new and useful Improvements in Clutches, of which the following isa specification.

This invent-ion relates to transmission mechanisms by means of whichpower is same or reduced speed of belts or gears, thereshocks or jars.

The invention has for its object to provide an improved device of thischaracter whereby the driven started or stopped while the drivingmechanism is in motion. g

The invention further has for its object to provide a coupling devicebetween the driving and driven mechanism which avoids the use of theadhesion of two or. more surfaces.

without the shifting further for its object to provide. an improveddevice of this character which is specially adapted for use in thedriving of automobiles; in the transmission of power from gas enginesand induction motors, and with other devices of low starting torque,whereby they may be started speed; and for use with where it is desiredto start, stop and change the speed, without stopping the source ofpower. I

The invention consists in an improved transmission deviee and in detailsof conand claimed.

In carrying out the objects of the invention, as hereinbefore stated, itis to be understoodthat the essential features thereof are susceptibleof changes in design and structural arrangement, one preferred andpractioal arrangement, being shown in the accompanying drawings toillustrate theinvention.

Referring to the accompanying drawings,Figure l is aview insideelevation with the casing in longitudinal section, of a transmissiondevice constructed in accordance with this invention. Fig. 2 is a viewin longitudinal section of the invention with the casing removed, takenon the line AA Fig. 3 is a transverse section thereof. taken on the lineB-B of Fig. 2.

Specification of Letters Patent. Application filed April 5, 1910, SerialNo. 553,522. Renewed Jan u mechanism may be and brought gradually up tohoists and machines idly fixed upon the shaft 15,

as hereinafter set forth may slide upon a he ry 12,1911. Serial in.802,848.

Fig. 4 is an end view in cross-section on the line C C of Fig. 2.' Fig.5 is air'enlarged detail view in longitudi-nalsection of a portion ofthedevice. 1 To illustrate the carrying out of the invention, acylindrical casing 1 is provided, formed with the chambers 2, 3, and 4,the chambers 2 and 4 communicating with each other through the openings5, and communicating with the chamber 3, openings 6 communicating with-openings 7 in. slide valves 8 mounted in sockets 9 in the casing1,:said valves S being mounted at one end in a diskor-cover 10 suitablysecured to one end of the casing 6.

Inclosed within the gear wheel 11 casin 1, and meshing wheel 13, securedby a ing shaft 15 connected with a toiithed gear with a suitable sourceby means of casing 6 isa toothed mounted to turn freely on a. spindle 12projecting from the side. of the feather 14 to a drivof power and havingits rear end mounted I in a socket 16 on one side of the casing 1, saidshaft 15 extending through the hub 17 projecting from the cover 10 andthrough a stuflin box 18. Mounted upon the hub 17 and a apted to slidefreely longitudinally thereon butprevented from turningv y keys 19, is ahead or disk 20. Attached to this head 2Q are the stems of the valves 8.The

jaws 23, which mesh with similar jaws 24 on the head 20.- The; spider 22may be rigas shown, or means for shiftmg it into and out of-en gagementwith the head 20. On the back of the casing 1' is rigidly secured aflanged socket projection 25 with which the driven shaft or machinerymay be connected.

mechanism hereinbefore described is a casing 26, through which air isforced by means of a fan 27. The casing]. is provided with an opening28' through -.which the casing may be filled, said opening being closedby a plug 29.

vso

The operation of the device is as follows:

ower being applied to the shaft 15, the toothed wheel 13 is caused torevolve in the direction of th'e arrow. The \liquid in the casing 6 iscarried from chamber 2 to chamber 4, and if the valve is in the positionshown' in Fig. 5, the liquid passes through ,q and then locked byshifting the spider "22 l thqopenings 6 and 7 in the valve to cham-q her3, and thence through the openings 6 a and 7 in the other valve tochamber 11. The passages '6 and 7 are ofsuch a size: that 5 the'hquidcirculates through them, the pressure of the liquid in all the chambers.remaining practicallyequal, thus permitting the gear wheel 11 torevolve at the same speed as the gear wheel 13, the casing 1 re- IQmainingstationary. Now, by shifting the head toward the spider 22, thevalves 8 7 are slid in-their casing so as to narrow the openin s Band 7,thereby limitingthe flow of-'liqu1d'through the valves and causing apressure in 'chamber 4, which pressure hecomes'greater and greater asthe valve passages are more and more narrowed. The liquid pressurewithin the chamber 4 retards the action of the gear wheel 11 on itsspindle f 4 12,2'thereby causing it to rotate about the main shaft 15 inthe same direction as gear h'l 13.; When the casing 1 revolving I u 'nd'the main shaft 15 has reached the des'ired'speed, thevalves 8 are fixedin the I proper'position and the heat generated withx in the ,casing istransmitted to the surface i and carri ed away by the blast from the fan27. I QWhen 'a" direct drive is desired from the 5 'shaftfllo to the hubor socket projection ""the casing 1, the latter is brought up to aximumspeed by moving the head 20 toward the spider. 22 until the lugs 24: engage'lugs23, or if the spider 22 slides upon the's'haft 15 by means of akey, the head 20 is moved to position to close the valves 8,

until the lugs 23 and 24 are engaged, It "will be understood that thedevice may 01)- erate. in either direction, not being confined to thedirection hereinbefore described.

a It will be seen that by means of this invention an effectivetransmission device is provided which may be readily connected -"anddisconnected with a driven device while,

ie-the driving device is in motion, and by regulating the circulation ofliquid through means of which, also, the driven device-may be startedunder no load and brou ht .adu-

"ally up tospeed, "By ,means of tiis niventio'n, also, a driven devicemay be started and stopped and the speed changedwithout stopping thesource of power.

Having described the invention, we-claimz I 1. Ina transmission deviceof the character described, a power-driving shaft, a

liquid circulating casing, loosely and revolubly mounted on said shaftand having means for connecting it with a driven shaft,

a planetary gearing in said casing connecting the power-shaft with thecasing, means for said casing, a cylindrical casin inclosing saidtransmission device, and a an on said power shaft in said cylindricalcasing adja cent to said transmission device.

2. In a transmission device of the character described, a power-drivingshaft, a cylindrical, revoluble casing loosely mounted on said shaft andhaving a circular series of liquid circulating chambers, two of whichcommunicate with each other, a planetary gearing located in said casingbetween said chambers and consisting of a toothed pinion fixed on thedriving shaft and a loose pinion meshing with said toothed pinion, slidevalves located between said chambers and a third chamber, a slidableadjustable head mounted on said casing and connected with said slidevalves and provided with clutch projections, a spider mounted on saiddriving shaft and having clutch projections adapted to be engaged bysaid head, and

-means for connecting said casing with a driven shaft.

. In testimony whereof we afiix our signatures in presence oftwowitnesses.

' IRA '1. MARTIN.

WILLIAM L. JONES.

Witnesses: v

.II. QSormononn, I F. J. Sormonomz.

